Everything You Need to Know about Narcissists, Psychopaths, and Abuse - click on this link: http://www.narcissistic-abuse.com/faq1.html
Intermittent reinforcement is actually rarely conscious. Many bullies are NOT aware of their misbehavior and deny it. Many bullies even claim to be the victims. Manipulation is the OUTCOME of intermittent reinforcement but it is rarely intentional. The Internet and the media confuse psychopaths with bullies. Psychopaths are DELIBERATELY manipulative. But only a few bullies are psychopaths. A typical example: a bully, not a psychopath, not self-aware, and would deny that he is a bully (would claim that he is the victim).
If a man is incapable of having sex owing to psychological or medical problems, he is an ABUSER if:
1. He refuses to acknowledge the existence of the problem and forces his partner to deny it as well; 2. He refuses to receive treatment of any kind; 3. He does not allow his spouse to have sex with other partners; 4. He refuses to let his spouse divorce him and find her happiness with another, fully functional man; 5. He does not provide his partner with sex substitutes such as love and intimacy; 6. He rejects his partner and humiliates her, thus ruining her self-esteem and self-confidence.
(From the book "Malignant Self-love: Narcissism Revisited" by Sam Vaknin - Click on this link to purchase the print book, or 16 e-books, or 3 DVDs with 16 hours of video lectures on narcissists, psychopaths, and abuse in relationships: http://www.narcissistic-abuse.com/thebook.html)